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Zinc concentrates. Method for determination of zinc

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High pressure vessels and apparatus. Norms and methods of strength calculation. Reinforcement of openings in shells and heads external pressure. Strength calculation under external static loads on the nozzle

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Reagents. Sodium chloride. Specifications

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Technical synthetic phenol. Specifications

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Activated carbon. Standard test method for determining acid extractable substances content

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Raremetallic concentrates. Methods for the determination of tantalum pentoxide

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